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en-dash rather than hyphen in "Schur–Cohn" and some other similarly obvious corrections per WP:MOS |
en-dash rather than hyphen in "Schur–Cohn" and some other similarly obvious corrections per WP:MOS |
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If after some recursions a small disk is found that contains only one root, this root is further approximated using [[Newton's method]] and then the polynomial is deflated by splitting off the corresponding linear factor. After that, the whole procedure is restarted.
===Schur
Consider, as before, a polynomial with complex coefficients
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